Release Notes
09/30/2026
USPS APIs Release Notes

For the latest updates, please review the USPS APIs Release Notes.

Announcements
09/29/2026
INFORMATIONAL: REMINDER: Electronic Verification System (eVS) Retirement
Announcements
09/29/2026
PROCESSING AND DISTRIBUTION: Eastern Processing Region - Birmingham, AL - Regional Processing and Distribution Center (RPDC)
Announcements
09/29/2026
Shape the Future of the PCC Network – Applications Open October 1
Release Notes
09/29/2026
January 2027 Release Overview
Data Files
09/29/2026
Informed Visibility® Mail Tracking & Reporting (IV®-MTR) Development Tracker

This document provides a list of active IV-MTR work to be as well as items completed in the current fiscal year.

 

*Please note, Postal Pro is the only source for a current IV-MTR Development log as updates will be made on an ongoing basis.

Announcements
09/28/2026
INFORMATIONAL - Removal of the Dangerous Goods Check Box on Customs Forms
Announcements
09/28/2026
INFORMATIONAL - Executive Retirement - Margaret Pepe
Announcements
09/28/2026
INFORMATIONAL - October 12, 2026, Columbus Day Holiday Recommendations on Live Animal Shipping
  • 09/28/2026

    Labeling List Changes Effective November 1, 2026

    Effective November 1, 2026, the Postal Service™ will revise Labeling List(s) L001, L007, L012, L201, and L606 to reflect changes in mail processing operations. Mailers are expected to label according to these revised lists for mailings inducted on or after the November 1, 2026, effective date through December 31, 2026, expiration date. The changes will be published in the Postal Bulletin, Issue #22713.